Chap. 24 Conceptual Modules Giancoli
Chap. 24 Conceptual Modules Giancoli
Chap. 24 Conceptual Modules Giancoli
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In a double-slit experiment, what<br />
path difference have the waves<br />
from each slit traveled to give a<br />
minimum at the indicated<br />
position?<br />
ConcepTest <strong>24</strong>.4<br />
Path Difference<br />
1) there is no difference<br />
2) half a wavelength<br />
3) one wavelength<br />
4) three wavelengths<br />
5) more than three wavelengths<br />
For Destructive Interference<br />
Intensity<br />
δ = 1/2 λ, 3/2 λ, 5/2 λ, 7/2 λ, …<br />
λ<br />
2λ<br />
3λ<br />
= (m + 1/2) λ<br />
λ/2<br />
3λ/<br />
2 5λ/2<br />
7λ/2
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